Gammaglobulin should be static injection of human immunoglobulin, mainly used for primary immunodeficiency patients, or patients with immune diseases such as Kawasaki disease, etc., commonly used for injection form. 1. Mainly used for primary immunodeficiency patients, or patients with immune diseases such as Kawasaki disease, etc. Gammaglobulin is used for the prevention of measles, infectious hepatitis, and can also be used for the treatment of primary thrombocytopenic purpura. 2.Adverse reactions: Transient headache, panic, nausea, chills, fever, abdominal pain, dyspnea and other adverse reactions may occur. Contraindications: hypersensitivity to immunoglobulins or a history of hypersensitivity to the product is contraindicated, selective IgA deficiency with IgA antibodies is contraindicated. It is suitable for patients with primary immunodeficiency, or patients with immune diseases such as Kawasaki disease, etc. It is recommended to use gammaglobulin under the guidance of a doctor, and cannot be applied on its own.